Im sure
they will be beautiful. Any gray boys you hatch will carry the buff as a GB1 (Grey Buff fist Gen)color genetics. I kept 2 of BB1 (Brown Buff first gen) with that genetics for this years breeding season so I can get some brown girls out of my buff girls.I’m not sure about him
I guess I’ll have to hatch some to find out
I did read the male can carry the buff gene and be grey so you may not know